JP2009166622A - Mounting structure and mounting method of rear bumper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure and mounting method of a rear bumper capable of improving a working efficiency by easily attaching a rear bumper to a vehicle body. <P>SOLUTION: Supporting projections 18a are formed on both sides of an opening 12 located at the rear of the vehicle body 11, respectively. The supporting projections 18a are desirably formed on the stay 18 of a side stopper 16 for receiving both side surfaces of a back door. A surface to be supported 25a supportable on the supporting projections 18a is formed on the inner surface of the rear bumper 14. The rear bumper 14 is temporarily placed at the rear of the vehicle body 11 by supporting the surface to be supported 25a on the supporting projections 18a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mounting structure and a mounting method of a rear bumper to a rear portion of a vehicle body of an automobile.

Conventionally, as a structure for attaching a front bumper to a front portion of a vehicle body of an automobile, configurations as disclosed in, for example, Patent Document 1 and Patent Document 2 have been proposed.
In the mounting structure described in Patent Document 1, a bumper rib protrudes rearward from the upper end portion of the front bumper. When the front bumper is assembled to the front part of the vehicle body, the front bumper can be temporarily placed on the vehicle body by placing the bumper rib on the lean hose on the vehicle body side.

  Further, in the mounting structure described in Patent Document 2, the upper receiving portions are provided on the shrouds on both sides of the rear surface of the front bumper. When the front bumper is assembled to the front portion of the vehicle body, the front bumper can be temporarily placed on the vehicle body by bringing the upper receiving portion into contact with the cross member on the vehicle body side.

Therefore, in the conventional configurations of Patent Document 1 and Patent Document 2, since the front bumper can be temporarily placed on the vehicle body, the assembly work of the front bumper can be easily performed.
JP-A-9-52563 JP 2006-35921 A

  However, in these conventional configurations, only the structure for attaching the front bumper to the front part of the vehicle body in which the lean hose and the cross member are arranged at appropriate positions is shown, and the structure for attaching the rear bumper to the rear part of the vehicle body Is not disclosed or suggested. Therefore, the configurations of Patent Document 1 and Patent Document 2 cannot be applied to the assembly of the rear bumper on the rear side of the vehicle body that does not have the structure described in Patent Document 1 and Patent Document 2.

  Actually, the work of assembling the rear bumper to the rear part of the vehicle body is time-consuming, and when one person performs the assembly work, the operator holds the rear bumper with one hand and holds it in place on the vehicle body, and tightens the bolt with the other hand. I was forced to do hard work to do other work such as. Therefore, not only the working efficiency is bad, but also the rear bumper and the vehicle body may be damaged. For this reason, there are cases where two workers, a worker having a rear bumper and a worker performing a bolting operation, are assigned to the assembling work. In such a case, the work efficiency is also improved. I can't.

  In particular, when an electronic device such as a rear confirmation sensor is incorporated in the rear bumper, the electronic device is supported within the distance between the rear bumper and the vehicle body with the rear bumper supported on the vehicle body. It is necessary to connect the connector on the side and the connector on the power source side of the vehicle body. Therefore, the assembling work becomes more difficult. In addition, when the vehicle is a minivan or the like and the rear bumper has a large shape, the difficulty of work is further doubled.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a rear bumper mounting structure and a mounting method in which the rear bumper can be easily assembled to the vehicle body and work efficiency can be improved.

  In order to achieve the above object, in the rear bumper mounting structure of the present invention, support protrusions are provided on both sides of the opening at the rear of the vehicle body, and a supported surface that can be supported on the support protrusions is provided on the inner side surface of the rear bumper. The rear bumper can be temporarily placed by supporting the supported surface on a support protrusion.

  Accordingly, when the rear bumper is assembled to the vehicle body, the rear bumper side supported surface is supported on the vehicle body side support protrusion, so that the rear bumper can be temporarily placed on the vehicle body even if there is no lean hose or the like at an appropriate position on the rear side of the vehicle body. It is possible to perform the bolting operation and the like with both hands. Therefore, it is possible to easily perform the assembly work of the rear bumper by one worker, and it is possible to improve the work efficiency and prevent the vehicle body and the rear bumper from being damaged.

  In the above configuration, the support protrusion may be formed on a stay of a side stopper for receiving both side surfaces of the back door. In the case of such a configuration, it is not necessary to configure the support protrusion with a separate member and attach it to the vehicle body, and the structure can be simplified.

  Furthermore, in the above configuration, the positional relationship between the support protrusion and the supported surface may be set so that a gap is formed between the vehicle body and the rear bumper in the temporarily placed state of the rear bumper. When configured in this manner, in the temporarily placed rear bumper, it is possible to easily perform connector connection work and the like by using the distance between the vehicle body and the rear bumper.

  Further, in the above-described configuration, a guide portion for guiding the rear bumper toward the mounting position may be provided between the rear bumper and the stay. When configured in this manner, the rear bumper can be smoothly moved from the temporary placement position toward the mounting position by the guide action of the guide portion, which helps to increase the work efficiency.

  Further, in the above configuration, an electronic device may be incorporated in the rear bumper, and a connector on the electronic device side and a power source side connector of the vehicle body may be connected at a position between the vehicle body and the rear bumper. In such a configuration, the connector on the electronic device side and the connector on the power source side can be easily connected at a position between the vehicle body and the rear bumper in the temporarily placed state of the rear bumper.

  Further, in the mounting method of the rear bumper according to the present invention, when the rear bumper is assembled to the vehicle body, the supported surface provided on the inner side surface of the rear bumper is supported on the support protrusions provided on both sides of the opening of the rear portion of the vehicle body, The rear bumper is temporarily placed in a state where a gap is formed between the rear bumper, and in that state, the connector on the electronic device side of the rear bumper and the connector on the power source side of the vehicle body are connected between the rear bumper and the vehicle body. The rear bumper is moved closer to the vehicle body side, and the rear bumper is fixed to the vehicle body.

  Therefore, also in the invention of this mounting method, the rear bumper can be easily assembled by one worker, as in the invention of the mounting structure.

  As described above, according to the present invention, it is possible to easily assemble the rear bumper to the vehicle body by one operator, improve the working efficiency, and damage the vehicle body and the rear bumper. The effect that it can be prevented is demonstrated.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, an opening 12 is provided in the rear portion of the vehicle body 11, and a back door 13 is attached to the opening 12 so as to be opened and closed. A rear bumper 14 is mounted below the opening 12 so as to extend in the left-right direction. Upstanding portions 15 are formed on the upper portions on both sides of the rear bumper 14 so as to extend upward along both sides of the opening 12.

  As shown in FIGS. 2 and 3, a pair of side stoppers 16 for receiving both side surfaces of the back door 13 are disposed on both sides of the opening 12 of the vehicle body 11. The side stopper 16 includes a stay 18 made of metal and a stopper main body 17 made of an elastic buffer material such as rubber fixed to an intermediate portion in the vertical direction of the stay 18. A support protrusion 18 a is bent at the upper end of the stay 18 toward the center in the left-right direction of the vehicle body 11. Then, as shown in FIG. 5, the stay 18 is fixed to the panel of the inner wall portion of the opening 12 of the vehicle body 11 with a pair of bolts 20 and nuts 21 via the reinforcing plate 19, whereby the side stopper 16 is moved. It is fixed on both sides of the opening 12. For this reason, when the back door 13 is closed, as shown by a chain line in FIG. 4, the synthetic resin contact member 22 fixed to the back door 13 side contacts the stopper main body 17 of the side stopper 16, The back door 13 is regulated and held at a predetermined position in the left-right direction.

  As shown in FIGS. 2 and 4, through holes 24 are formed in the inner walls of both standing portions 15 of the rear bumper 14. In the state where the rear bumper 14 is mounted on the rear portion of the vehicle body 11, the stopper main body 17 of each side stopper 16 is positioned in the through hole 24 and can come into contact with the contact member 22 of the back door 13. Correspondingly arranged.

  As shown in FIGS. 2 and 5, a pair of supported pieces 25 having a horizontal L-shaped cross section are integrally formed on the back surfaces of both standing portions 15 of the rear bumper 14. As shown in FIGS. 3 and 7A and 7B, on the lower surface of each supported piece 25, there is a supported surface 25a that can be supported on a support projection 18a on the stay 18 of the side stopper 16, and A guide surface 25b is formed as a guide portion continuous with the supported surface 25a.

  Then, when the rear bumper 14 is assembled to the rear portion of the vehicle body 11, as shown in FIGS. 7A and 8A, the supported surface 25a of each supported piece 25 is supported on the support protrusion 18a. The rear bumper 14 is suspended by the support protrusion 18 a and is held in a temporarily placed state with respect to the vehicle body 11. When the rear bumper 14 is temporarily placed, a space S is formed between the rear portion of the vehicle body 11 and the rear bumper 14, as shown in FIG. In this case, as shown in FIG. 7A, the width of the interval S is changed by rotating the rear bumper 14 in the front-rear direction around the support portion P of the supported surface 25a with respect to the support protrusion 18a. be able to.

  Further, by pushing the rear bumper 14 toward the vehicle body 11 from the temporary placement position shown in FIG. 6, that is, forward, as shown in FIGS. 7 (b) and 8 (b), the supported piece 25 is supported by the support protrusions 18a. The support position is moved along the guide surface 25b from the supported surface 25a. As a result of this movement, the rear bumper 14 is moved closer to the vehicle body 11 and is disposed at the mounting position with respect to the vehicle body 11 while maintaining the temporarily placed state as shown in FIG. At the mounting position, the inner periphery of the rear bumper 14 is fastened and fixed to the vehicle body 11 by a plurality of bolts 26 and the like passing through the through holes 26a.

  As shown in FIGS. 1, 2, and 6, the rear bumper 14 is provided with a plurality of acoustic sensors (so-called back sonar) 27 for backward confirmation as electronic devices. A connector 28 on the acoustic sensor 27 side is provided on the rear bumper 14 side, and is connected to each acoustic sensor 27 via a lead wire 29. A power supply side connector 30 that can be connected to a connector 28 on the acoustic sensor 27 side is provided at the rear of the vehicle body 11. Then, as shown in FIG. 6, with the rear bumper 14 placed in the temporary placement position, the operator uses the distance S between the vehicle body 11 and the rear bumper 14 to connect the connector 28 of the acoustic sensor 27 and the power source side. The connector 30 is connected.

Next, a method for attaching the rear bumper 14 configured as described above will be described.
When the rear bumper 14 is assembled to the rear part of the vehicle body 11, as shown in FIGS. 7A and 8A, the supported surface 25a of each supported piece 25 provided on the rear surface of the rear bumper 14 is provided. The support is supported on the support protrusions 18a provided on both sides of the opening 12 on the vehicle body 11 side. In this way, as shown in FIG. 6, the rear bumper 14 is suspended and temporarily placed in a state where a gap S is formed between the rear bumper 14 and the vehicle body 11.

  Therefore, the operator does not need to hold the rear bumper 14 by hand, and in this state, the operator uses the distance S between the rear bumper 14 and the vehicle body 11 to connect the connector 28 on the acoustic sensor 27 side of the rear bumper 14 and the vehicle body. 11 is connected to the connector 30 on the power source side. Depending on the vehicle type, a rear lamp such as a direction indicator lamp may be incorporated in the rear bumper 14. In such a case, a connector for the back lamp is provided in the rear bumper 14. The connector is also connected to the power supply side connector using the interval S. Thereafter, when the rear bumper 14 is moved closer to the vehicle body 11 side, as shown in FIGS. 7B and 8B, the support position of the supported piece 25 by each support protrusion 18a is changed from the supported surface 25a to the guide surface. Transition to the 25b side. For this reason, as shown in FIG. 1, the rear bumper 14 is moved to the mounting position while maintaining the temporarily placed state. Accordingly, even in this state, the operator does not need to hold the rear bumper 14, and the rear bumper 14 can be easily tightened and fixed to the vehicle body 11 by the plurality of bolts 26 and the like in the temporarily placed state at the mounting position. In this way, the assembly work of the rear bumper 14 to the vehicle body 11 is completed.

Therefore, in this embodiment, the following effects can be obtained.
(1) In this embodiment, when the rear bumper 14 is assembled to the vehicle body 11, the rear bumper 14 is temporarily placed on the vehicle body 11 by supporting the supported surface 25 a on the rear bumper 14 side on the support protrusion 18 a on the vehicle body 11 side. be able to. Then, the rear bumper 14 can be moved to the mounting position while maintaining the temporarily placed state, and can be bolted to the vehicle body 11. Therefore, it does not occur that one worker is forced to perform difficult work or requires two workers, a worker having the rear bumper 14 and a worker to fix with bolts. Assembling work of the rear bumper 14 can be easily performed by a human operator without damaging the rear bumper 14 or the vehicle body 11, and work efficiency can be improved.

  (2) This embodiment is configured such that a gap S is formed between the vehicle body 11 and the rear bumper 14 when the rear bumper 14 is temporarily placed. For this reason, when the rear bumper 14 is temporarily placed, a connector 28 on the electronic device (acoustic sensor 27) side of the rear bumper 14 and a connector 30 on the power source side of the vehicle body 11 are utilized by utilizing the distance S between the vehicle body 11 and the rear bumper 14. Can be easily connected.

  (3) In this embodiment, a support protrusion 18 a for supporting the supported surface 25 a is formed on the upper end portion of the stay 18 of the side stopper 16. For this reason, it is not necessary to configure the supporting projections with a dedicated separate member and attach the supporting projections to the vehicle body 11, and the structure can be simplified while suppressing an increase in the number of parts.

(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
In the above embodiment, the support protrusion 18a of the side stopper 16 is extended in the front-rear direction, and the guide protrusion for guiding the rear bumper 14 from the temporary placement position toward the mounting position is provided on the support protrusion 18a.

  In the embodiment, the support protrusion 18a is configured by a member different from the stay 18 of the side stopper 16.

The principal part perspective view of the vehicle provided with the attachment structure of the rear bumper of one Embodiment. The principal part disassembled perspective view of the vehicle of FIG. The principal part perspective view which expands and shows a part of attachment structure of a rear bumper. FIG. 4 is a partially enlarged cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a partially enlarged sectional view taken along line 5-5 in FIG. The principal part top view which shows the temporary placement state of the rear bumper with respect to a vehicle body. (A) And (b) is a fragmentary sectional view which makes the section in the 7-7 line of FIG. 5, and shows the temporary placement state and mounting state of the rear bumper with respect to the vehicle body. (A) And (b) is a fragmentary sectional view which makes the section in the 8-8 line of FIG. 5, and shows the temporary placement state and mounting state of the rear bumper with respect to the vehicle body.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Vehicle body, 12 ... Opening, 13 ... Back door, 14 ... Rear bumper, 16 ... Side stopper, 17 ... Stopper body, 18 ... Stay, 18a ... Supporting protrusion, 25 ... Supported piece, 25a ... Supported surface, 25b ... Guide surface as a guide part, 27... Sensor for backward confirmation as an electronic device, 28... Connector on the electronic device side, 30.

Claims (6)

Support protrusions are provided on both sides of the opening at the rear of the vehicle body, a supported surface that can be supported on the support protrusion is provided on the inner surface of the rear bumper, and the rear bumper is temporarily placed by supporting the supported surface on the support protrusion. Rear bumper mounting structure, characterized in that it can be configured. The rear bumper mounting structure according to claim 1, wherein the support protrusion is formed on a stay of a side stopper for receiving both side surfaces of the back door. The positional relationship between the support protrusion and the supported surface is set so that a gap is formed between the rear portion of the vehicle body and the rear bumper in the temporarily placed state of the rear bumper. Rear bumper mounting structure. 4. The rear bumper mounting structure according to claim 3, wherein a guide portion for guiding the rear bumper toward the mounting position is provided between the rear bumper and the stay. The electronic device is incorporated in the rear bumper, and the connector on the electronic device side and the connector on the power source side of the vehicle body are connected at a position between the vehicle body and the rear bumper. The rear bumper mounting structure according to claim 1. When the rear bumper is assembled to the vehicle body, the supported surface provided on the inner surface of the rear bumper is supported on the support protrusions provided on both sides of the opening at the rear of the vehicle body, and a gap is formed between the rear bumper and the vehicle body. In that state, the connector on the electronic device side of the rear bumper and the connector on the power source side of the vehicle body are connected between the rear bumper and the vehicle body, and then the rear bumper is moved closer to the vehicle body side to move the rear bumper. A method of attaching a rear bumper characterized by being fixed to a vehicle body.

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